What is a wiki? Wiki is an editable site that is used to share information. I can be used for group projects, collaborate writings,planning events r activities and for frequently asked questions. It is knowledge based and anyone can contribute to it.
Blogs are posts that have an author and are centered on that individual person. They are also used to share information, but only the author may edit the page. Although people can comment on the topic discussed, they are not able to edit the page itself. Blogs may be used to share information on specific topics of the authors interest, they can also be used to post different reviews about various things. Just remember, that blogs are opinion based and do not necessarily based on facts.